<p>Dear customer,</p>
<p>
  Thank you for registering. To activate your account, click the following link:<br />
  <?php echo link_to('activate ' . $login, '@activate?login=' . $login . '&key=' . $sf_flash->get('key'), array('absolute' => true)) ?>
</p>
<p>
  Regards,<br />
  ProjectY Admin
</p>